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A recent Twitter crackdown on 'locked' accounts meant that high-profile users lost millions of followers overnight.
Katy Perry, Justin Bieber and Barack Obama each lost more than two million followers overnight.
Donald Trump's following looks relatively unscathed.
Celebrity accounts on Twitter have seen a big drop in numbers overnight, thanks to a rule change by the company.
Twitter announced on Wednesday that it would no longer include "locked" accounts in follower numbers in an effort to boost user trust in the service. Twitter locks accounts when they display a sudden change of...Read more ...